Below are the steps:

1. Log in to the system.
2. Go to the File Management module.
3. Under the Maintenance section, select Manage Files.
4. Scroll down to view the full list of available files.
5. Locate the file(s) you wish to delete. You may use Advanced Search or the Search option to narrow your results.
6. Select the checkbox in the last column of the file(s) you want to delete.
7. At the bottom of the page, open the Bulk Action dropdown menu and choose Delete Files.
8. Click Go to confirm and complete the deletion.